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Metadata Files

Data Publication

Ultrasonic transmission measurements from injection borehole and vertical validation boreholes from the STIMTEC experiment, Reiche Zeche Mine, Freiberg (Saxony, Germany)

Boese, Carolin M. | Kwiatek, Grzegorz | Fischer, Thomas | Plenkers, Katrin | Starke, Juliane | Blümle, Felix | Dresen, Georg | Janssen, Christoph

GFZ Data Services

(2021)

Descriptions

Between early 2018 and late 2019 the STIMTEC hydraulic stimulation experiment was performed at ca.~130 m below surface at the Reiche Zeche underground research laboratory in Freiberg, Saxony/Germany. The project aimed at gaining insight into the creation and growth of fractures in anisotropic and heterogeneous metamorphic gneiss , to develop and optimise hydraulic stimulation techniques and to control the associated induced seismicity under in situ conditions at the mine-scale. These aspects of failure and associated seismicity are important for the development of enhanced geothermal energy systems. A combined seismic network consisted of 12 single-component acoustic emission sensors (sensitivity 1-100 kHz) and three single-component Wilcoxon accelerometers (sensitivity 50 Hz-25 kHz) were installed in boreholes drilled into the test volume, surrounding the stimulation site (Figure 1). A stimulation borehole with 63 m length was drilled with 15° northward inclination. This data set of 314 active ultrasonic transmission (UT) measurements is supplementary to Boese et al. (2021, in review), which introduces the STIMTEC experiment and its active measurement campaigns. This data set was used to derive an anisotropic velocity model for the STIMTEC rock volume. The active seismic data provided here are from six boreholes (BH09, BH10, BH12, BH15, BH16, BH17) as shown in Figure 1. of the associated data description. There are three tables provided as metadata that contain the STIMTEC sensor coordinates, event information of the 314 UT measurements and the UT picks. The UT measurements were recorded with a sampling rate of 1 MHz and results from an automatic stack of 1024 UT pulses generated by the ultrasonic transmitter and recorded by the STIMTEC sensors. The UT measurements are saved in binary file format (fsf file format). Fsf-files can be processed with FOCI software: https://www.induced.pl/software/foci Each fsf file contains 32768 samples, which corresponds to 0.032768 seconds. All UT event files were manual inspected and phase arrivals identified. These are stored in the fsf-file header as well as in the table STIMTEC_UT_picks.csv.

Keywords


Originally assigned keywords
Ultrasonic transmission
Acoustic emission sensor
velocity calibration
EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > SEISMIC PROFILE > SEISMIC BODY WAVES
In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Accelerometers > ACCELEROMETERS

MSL enriched keywords
Ancillary equipment
acoustic measurement - active source
ultrasonic imaging equipment
Ancillary equipment
model structure monitoring (3D)
acoustic measurement - active source
ultrasonic imaging equipment
metamorphic rock
gneiss
Measured property
acoustic emission (AE)
Measured property
acoustic emission (AE)
subsurface energy production
geothermal energy extraction
induced seismicity
Facility types
field-scale observatory - passive monitoring
Models
subsurface property modelling
seismic velocity field model

MSL enriched sub domains i

rock and melt physics
analogue modelling of geologic processes
geo-energy test beds

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=ae3aa7ab-c79e-11eb-9603-497c92695674

Source publisher

GFZ Data Services


DOI

10.5880/gfz.4.2.2021.002


Creators

Boese, Carolin M.

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-2383-2219

Kwiatek, Grzegorz

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1076-615X

Fischer, Thomas

GmuG mbH Bad Nauheim, Bad Nauheim, Germany

Plenkers, Katrin

SCCER-SoE ETH Zurich, Zurich, Switzerland

ORCID:

https://orcid.org/0000-0002-7739-2554

Starke, Juliane

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-0377-6512

Blümle, Felix

ASIR Seismic

ORCID:

https://orcid.org/0000-0001-7711-3976

Dresen, Georg

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3737-2858

Janssen, Christoph

GFZ German Research Centre for Geosciences, Potsdam, Germany

ScopusID:

57196350671


Contributors

Boese, Carolin M.

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-2383-2219

Boese, Carolin M.

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-2383-2219

Kwiatek, Grzegorz

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1076-615X

Fischer, Thomas

ProjectMember

GmuG mbH Bad Nauheim, Bad Nauheim, Germany

Plenkers, Katrin

DataCollector

SCCER-SoE ETH Zurich, Zurich, Switzerland

ORCID:

https://orcid.org/0000-0002-7739-2554

Plenkers, Katrin

ProjectMember

SCCER-SoE ETH Zurich, Zurich, Switzerland

ORCID:

https://orcid.org/0000-0002-7739-2554

Starke, Juliane

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-0377-6512

Blümle, Felix

ProjectMember

ASIR Seismic

ORCID:

https://orcid.org/0000-0001-7711-3976

Dresen, Georg

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3737-2858

Janssen, Christoph

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ScopusID:

57196350671

Boese, Carolin M.

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany


References

https://www.induced.pl/software/foci


Citation

Boese, C. M., Kwiatek, G., Fischer, T., Plenkers, K., Starke, J., Blümle, F., Dresen, G., & Janssen, C. (2021). Ultrasonic transmission measurements from injection borehole and vertical validation boreholes from the STIMTEC experiment, Reiche Zeche Mine, Freiberg (Saxony, Germany) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.2.2021.002


Dates

Collected:

2018-06-29/2019-12-05

Issued:

2021


Funding References

Funder name: Bundesministerium für Bildung und Forschung

Funder identifier: https://doi.org/10.13039/501100002347

Funder identifier type: Crossref Funder ID

Award number: 03G0874C

Award title: Verbundvorhaben STIMTEC


Rights

Creative Commons Attribution 4.0 International


Geo location(s)

STIMTEC underground research lab, 2nd floor Reiche Zeche Mine, Freiberg, saxony, Germany


Spatial coordinates